Design, Analysis, and Fabrication of Two Lightweight, High L’ Railguns

Laughlin, R.L.
Bacon, J.L.
Zowarka, R.C.
Price, J.H.
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Design, analysis, and fabrication of two railguns with 90 and 30 mm bores utilizing a laminated containment structure are discussed. Laminations are insulated from each other by layers of sheet adhesive, and a composite overwrap is applied to the laminations for longitudinal stiffness. The 90 mm-bore gun is being fabricated for testing as the 9 MJ range gun. Performance specifications for the 90 mm-bore gun are 3.2 MA peak current, 4.0 km/s maximum velocity, and 12 MJ muzzle energy. The 30 mm-bore gun is a one-third scale version of the 90 mm-bore gun, built to develop construction techniques and verify performance. It is designed to be operated at 1 MA with a maximum muzzle energy of 400 kJ

R.L. Laughlin, J.L. Bacon, R.C. Zowarka, and J.H. Price, “Design, analysis, and fabrication of two lightweight, high L’ railguns,” IEEE Transactions on Magnetics, vol. 29, no. 1, January 1993, pp. 451-456.